EP4051338A1 - Infusion cannula unit made of plastic - Google Patents
Infusion cannula unit made of plasticInfo
- Publication number
- EP4051338A1 EP4051338A1 EP20789920.4A EP20789920A EP4051338A1 EP 4051338 A1 EP4051338 A1 EP 4051338A1 EP 20789920 A EP20789920 A EP 20789920A EP 4051338 A1 EP4051338 A1 EP 4051338A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cannula
- infusion cannula
- infusion
- cannula assembly
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3293—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles characterised by features of the needle hub
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1581—Right-angle needle-type devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1587—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body suitable for being connected to an infusion line after insertion into a patient
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2207/00—Methods of manufacture, assembly or production
Definitions
- the invention relates to a plastic infusion cannula assembly.
- the infusion cannula assembly in one piece, that is to say in particular to form the cannula in one piece on the housing. There is no need to assemble individual parts of the infusion cannula assembly, in particular to assemble the cannula on the housing.
- the assembly can be made of PE and / or PP.
- An injection molded part according to claim 2 is particularly suitable for mass production.
- a lumen extension according to claim 3 simplifies fluid guidance in the infusion cannula assembly.
- a conical widening section according to claim 4 is favorable to manufacture.
- a septum receiving section according to claim 5 leads to a simple sealing closure of a housing opening which may remain due to the manufacturing process and which is to be closed.
- a metal sleeve according to claim 6 enables the cannula to be stabilized so that it can be made of comparatively soft plastic material. Despite this additional metal sleeve, the assembly, comprising the cannula and the housing, remains made in one piece. The Me tallhülse is not part of the one-piece assembly in this case. In principle, it is also possible to manufacture the cannula entirely from plastic, for example without a metal sleeve.
- FIG. 1 shows an infusion cannula assembly made of plastic, which is in one piece and has a cannula and a housing connected thereto; and 2 shows a further embodiment of a one-piece infusion cannula assembly.
- An infusion cannula assembly 1 according to FIG. 1 is designed as a one-piece plastic component in the form of an injection molded part.
- the infusion cannula assembly 1 has a cannula 2 for introduction into a blood vessel of a patient.
- the infusion cannula assembly 1 can be part of an infusion set, in particular for a continuous infusion application.
- a cannula longitudinal axis 3 runs vertically in FIG. 1.
- the infusion cannula assembly 1 also includes a housing 4 which is manufactured in one piece together with the cannula 2.
- a guide line section 5 is also formed as a one-piece housing component.
- a line axis 6 of the feed line section 5 runs horizontally in FIG. 1.
- the line axis 6 runs at an angle of 90 ° to the cannula longitudinal axis 3. This angle between the line axis 6 and the cannula longitudinal axis 3 is therefore greater than 10 °.
- the angle between the line axis 6 and the cannula longitudinal axis 3 can be in the range between 10 ° and 90 ° and, for example, also be 30 °, 45 ° or 60 °.
- the feed line section 5 opens obliquely into a base body 7 of the housing 4.
- the infusion cannula assembly 1 can be made of PE (polyethylene) or PP (polypropylene). Alternatively, the infusion cannula assembly 1 can also be made from a fluoropolymer or a combination of fluoropolymers, for example from PTFE or a thermo- plastically processable modification thereof, for example polychlorotrifluoroethylene (PCTFE) or tetrafluoroethylene-hexafluoropropylene copolymer (FEP).
- PCTFE polychlorotrifluoroethylene
- FEP tetrafluoroethylene-hexafluoropropylene copolymer
- the infusion cannula assembly is manufactured by injection molding.
- An injection mold with drawn cores can be used here.
- the cannula 2 has a conically tapering tip 8. Starting from the tip 8, a cannula lumen 9 initially along the course of the cannula 2 has a constant inner diameter. In the main body 7 of the housing 4, the cannula lumen 9 expands via a conical widening section 10 to a connecting section 11, the diameter of which is a multiple of the inner diameter of the cannula lumen 9 in the area of the cannula 2 and, for example, five times that of the cannula inside diameter is.
- the feed line section 5 opens into the connecting section 11.
- the latter has a metal sleeve which is encapsulated by the plastic material of the infusion cannula assembly 1 in a cannula area.
- a metal sleeve can serve to reinforce the cannula 2.
- FIG. 14 A further embodiment of an infusion cannula assembly 14 is described below with reference to FIG. Components and functions that correspond to those which have already been explained above with reference to FIG. 1, have the same reference numbers and are not discussed again in detail.
- a feed section 15 does not protrude radially beyond a main body 7 of the housing 4 of the assembly 14.
- a fluid passage opening 16 of the supply line section 15 opens into a cannula lumen 9.
- the line axis 6 of the feed line section 15 has an angle of 90 ° to the cannula longitudinal axis 3 2 is overmolded.
- FIG. 2 also shows a septum 18 for closing an upper end section of the cannula lumen 9 in FIG. 2.
- the infusion cannula assemblies 1 and 14 are suitable for mass production. In particular, a manufacturing method for these assemblies 1 or 14 can be made possible in one step.
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
An infusion cannula unit (1) made of plastic comprises a cannula (2) for insertion in a blood vessel. A housing (4) of the unit has a supply line portion (5) the line axis (6) of which runs at an angle relative to a cannula longitudinal axis (3), said angle being greater than 10°. The supply line portion (5) is in fluid communication with a lumen (9) of the cannula (2). The infusion cannula unit has a one-piece design, resulting in a unit which is easy to produce and in particular suitable for mass production.
Description
Infusionskanülen-Baugruppe aus Kunststoff Plastic infusion cannula assembly
Die vorliegende Patentanmeldung nimmt die Priorität der deutschen Pa tentanmeldung DE 10 102019216 870.1 in Anspruch, deren Inhalt durch Bezugnahme hierin aufgenommen wird. The present patent application takes priority of the German patent application DE 10 102019216 870.1, the content of which is incorporated herein by reference.
Die Erfindung betrifft eine Infusionskanülen-Baugruppe aus Kunststoff. The invention relates to a plastic infusion cannula assembly.
Eine derartige Infusionskanülen-Baugruppe ist bekannt aus der Such an infusion cannula assembly is known from
DE 1 273 749 A, der DE 102007 055 646 B4 und der EP 2 528 642 Bl. DE 1 273 749 A, DE 102007 055 646 B4 and EP 2 528 642 Bl.
Es ist eine Aufgabe der vorliegenden Erfindung, eine Infusionskanülen- Baugruppe mit einer Kanüle zur Einführung in ein Blutgefäß und mit ei nem Gehäuse mit einem Zuführleitungsabschnitt, der mit einem Lumen der Kanüle in Fluidverbindung steht, so weiterzubilden, dass die Produktion vereinfacht und insbesondere massenherstellungstauglich ist. It is an object of the present invention to further develop an infusion cannula assembly with a cannula for insertion into a blood vessel and with a housing with a feed line section which is in fluid connection with a lumen of the cannula so that production is simplified and, in particular, suitable for mass production .
Diese Aufgabe ist erfindungsgemäß gelöst durch eine Infusionskanülen- Baugruppe mit den in Anspruch 1 angegebenen Merkmalen. According to the invention, this object is achieved by an infusion cannula assembly having the features specified in claim 1.
Erfindungsgemäß wurde erkannt, dass es möglich ist, die Infusionskanü len-Baugruppe einstückig auszuführen, also insbesondere die Kanüle ein stückig an das Gehäuse anzuformen. Eine Teilemontage von Einzelteilen der Infusionskanülen-Baugruppe, insbesondere eine Montage der Kanüle an das Gehäuse, entfällt. Zudem wurde erkannt, dass es möglich ist, die Kanüle einerseits und das Gehäuse andererseits aus dem gleichen Werk stoff herzustellen, so dass typische Kunststoff-Formungstechniken zur ein stückigen Herstellung der Baugruppe zugänglich sind. Die Baugruppe kann aus PE und/oder aus PP hergestellt sein.
Ein Spritzgussteil nach Anspruch 2 ist besonders massenproduktionstaug lich. Eine Lumenerweiterang nach Anspruch 3 vereinfacht eine Fluidführung in der Infusionskanülen-Baugruppe. According to the invention, it was recognized that it is possible to make the infusion cannula assembly in one piece, that is to say in particular to form the cannula in one piece on the housing. There is no need to assemble individual parts of the infusion cannula assembly, in particular to assemble the cannula on the housing. In addition, it was recognized that it is possible to manufacture the cannula on the one hand and the housing on the other hand from the same material, so that typical plastic molding techniques for a one-piece production of the assembly are accessible. The assembly can be made of PE and / or PP. An injection molded part according to claim 2 is particularly suitable for mass production. A lumen extension according to claim 3 simplifies fluid guidance in the infusion cannula assembly.
Ein konischer Erweiterangsabschnitt nach Anspruch 4 ist in der Herstel lung günstig. A conical widening section according to claim 4 is favorable to manufacture.
Ein Septum- Aufnahmeabschnitt nach Anspruch 5 führt zu einem einfachen dichtenden Verschluss einer gegebenenfalls aufgrund des Fertigungspro zesses verbleibenden, zu schließenden Gehäuseöffnung. Eine Metallhülse nach Anspruch 6 ermöglicht eine Stabilisierung der Ka nüle, so dass diese aus vergleichsweise weichem Kunststoffmaterial gefer tigt sein kann. Trotz dieser zusätzlichen Metallhülse bleibt die Baugruppe, aufweisend die Kanüle und das Gehäuse, einstückig ausgeführt. Die Me tallhülse ist in diesem Fall nicht Teil der einstückigen Baugruppe. Grund- sätzlich ist es möglich, die Kanüle auch ganz aus Kunststoff, also bei spielsweise ohne Metallhülse, zu fertigen. A septum receiving section according to claim 5 leads to a simple sealing closure of a housing opening which may remain due to the manufacturing process and which is to be closed. A metal sleeve according to claim 6 enables the cannula to be stabilized so that it can be made of comparatively soft plastic material. Despite this additional metal sleeve, the assembly, comprising the cannula and the housing, remains made in one piece. The Me tallhülse is not part of the one-piece assembly in this case. In principle, it is also possible to manufacture the cannula entirely from plastic, for example without a metal sleeve.
Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Zeichnung näher erläutert. In dieser zeigen: Embodiments of the invention are explained in more detail below with reference to the drawing. In this show:
Fig. 1 eine Infusionskanülen-Baugruppe aus Kunststoff, die einstückig ist und eine Kanüle und ein hiermit verbundenes Gehäuse auf weist; und
Fig. 2 eine weitere Ausführung einer einstückigen Infusionskanülen- Baugrappe. 1 shows an infusion cannula assembly made of plastic, which is in one piece and has a cannula and a housing connected thereto; and 2 shows a further embodiment of a one-piece infusion cannula assembly.
Eine Infusionskanülen-Baugruppe 1 nach Fig. 1 ist als einstückiges Kunst stoff-Bauteil in Form eines Spritzgussteils ausgeführt. An infusion cannula assembly 1 according to FIG. 1 is designed as a one-piece plastic component in the form of an injection molded part.
Die Infusionskanülen-Baugruppe 1 hat eine Kanüle 2 zur Einführung in ein Blutgefäß eines Patienten. Die Infusionskanülen-Baugruppe 1 kann Be standteil eines Infusionssets, insbesondere für eine Dauerinfusions-Anwen- dung, sein. The infusion cannula assembly 1 has a cannula 2 for introduction into a blood vessel of a patient. The infusion cannula assembly 1 can be part of an infusion set, in particular for a continuous infusion application.
Eine Kanülen-Längsachse 3 verläuft vertikal in der Fig. 1. Zur Infusions kanülen-Baugruppe 1 gehört weiterhin ein Gehäuse 4, welches einstückig zusammen mit der Kanüle 2 hergestellt ist. An dem Gehäuse 4 ist ein Zu führleitungsabschnitt 5 als ebenfalls einstückiger Gehäusebestandteil aus gebildet. Eine Leitungsachse 6 des Zuführleitungsabschnitts 5 verläuft in der Fig. 1 horizontal. Die Leitungsachse 6 verläuft unter einem Winkel von 90° zur Kanülen-Längsachse 3. Dieser Winkel zwischen der Leitungsachse 6 und der Kanülen-Längsachse 3 ist also größer als 10°. Je nach Ausfüh rung der Infusionskanülen-Baugruppe kann der Winkel zwischen der Lei tungsachse 6 und der Kanülen-Längsachse 3 im Bereich zwischen 10° und 90° liegen und beispielsweise auch 30°, 45° oder 60° betragen. In diesen Fällen mündet der Zuführleitungsabschnitt 5 schräg in einen Grundkörper 7 des Gehäuses 4 ein. A cannula longitudinal axis 3 runs vertically in FIG. 1. The infusion cannula assembly 1 also includes a housing 4 which is manufactured in one piece together with the cannula 2. On the housing 4, a guide line section 5 is also formed as a one-piece housing component. A line axis 6 of the feed line section 5 runs horizontally in FIG. 1. The line axis 6 runs at an angle of 90 ° to the cannula longitudinal axis 3. This angle between the line axis 6 and the cannula longitudinal axis 3 is therefore greater than 10 °. Depending on the execution of the infusion cannula assembly, the angle between the line axis 6 and the cannula longitudinal axis 3 can be in the range between 10 ° and 90 ° and, for example, also be 30 °, 45 ° or 60 °. In these cases, the feed line section 5 opens obliquely into a base body 7 of the housing 4.
Die Infusionskanülen-Baugruppe 1 kann aus PE (Polyethylen) oder aus PP (Polypropylen) gefertigt sein. Alternativ kann die Infusionskanülen- Baugruppe 1 auch aus einem Fluorpolymer oder einer Kombination von Fluorpolymeren gefertigt sein, beispielsweise aus PTFE oder einer thermo-
plastisch verarbeitbaren Modifikation hiervon, beispielsweise Poly- chlortrifluorethylen (PCTFE) oder Tetrafluorethylen-Hexafluorpropylen- Copolymer (FEP). The infusion cannula assembly 1 can be made of PE (polyethylene) or PP (polypropylene). Alternatively, the infusion cannula assembly 1 can also be made from a fluoropolymer or a combination of fluoropolymers, for example from PTFE or a thermo- plastically processable modification thereof, for example polychlorotrifluoroethylene (PCTFE) or tetrafluoroethylene-hexafluoropropylene copolymer (FEP).
Die Infusionskanülen-Baugruppe wird durch Spritzguss hergestellt. Hierbei kann eine Spritzgussform mit gezogenen Kernen zum Einsatz kommen. The infusion cannula assembly is manufactured by injection molding. An injection mold with drawn cores can be used here.
Die Kanüle 2 hat eine sich konisch verjüngende Spitze 8. Ausgehend von der Spitze 8 hat ein Kanülen-Lumen 9 zunächst längs des Verlaufs der Ka nüle 2 einen konstanten Innendurchmesser. Im Grandkörper 7 des Gehäu ses 4 erweitert sich das Kanülen-Lumen 9 über einen konischen Erweite- rangsabschnitt 10 hin zu einem Verbindungsabschnitt 11, dessen Durch messer ein Mehrfaches des Innendurchmessers des Kanülen-Lumens 9 im Bereich der Kanüle 2 und beispielsweise das Fünffache dieses Kanülen innendurchmessers beträgt. In den Verbindungsabschnitt 11 mündet der Zuführleitungsabschnitt 5 ein. The cannula 2 has a conically tapering tip 8. Starting from the tip 8, a cannula lumen 9 initially along the course of the cannula 2 has a constant inner diameter. In the main body 7 of the housing 4, the cannula lumen 9 expands via a conical widening section 10 to a connecting section 11, the diameter of which is a multiple of the inner diameter of the cannula lumen 9 in the area of the cannula 2 and, for example, five times that of the cannula inside diameter is. The feed line section 5 opens into the connecting section 11.
Auf der dem Erweiterangsabschnitt 10 gegenüberliegenden Seite des Ver bindungsabschnitts 11 schließt sich an letzteren ein Aufnahmeabschnitt 12 des Gehäuses 4 für ein in der Fig. 1 nicht dargestelltes Septum zum dichten Verschließen des Aufnahmeabschnitts 12 an. On the side of the connecting section 11 opposite the extension section 10, the latter is followed by a receiving section 12 of the housing 4 for a septum (not shown in FIG. 1) for sealing the receiving section 12.
Bei einer nicht dargestellten Ausführung s Variante der Infusionskanülen- Baugruppe 1 hat diese eine Metallhülse, die vom Kunststoffmaterial der Infusionskanülen-Baugruppe 1 in einem Kanülenbereich umspritzt ist. Eine derartige Metallhülse kann zur Verstärkung der Kanüle 2 dienen. In an embodiment (not shown) of the infusion cannula assembly 1, the latter has a metal sleeve which is encapsulated by the plastic material of the infusion cannula assembly 1 in a cannula area. Such a metal sleeve can serve to reinforce the cannula 2.
Anhand der Fig. 2 wird nachfolgend eine weitere Ausführung einer Infusi- onskanülen-Baugrappe 14 beschrieben. Komponenten und Funktionen, die
denjenigen entsprechen, die vorstehend unter Bezugnahme auf die Fig. 1 bereits erläutert wurden, tragen die gleichen Bezugsziffem und werden nicht nochmals im Einzelnen diskutiert. Ein Zuführabschnitt 15 steht radial bei der Infusionskanülen-Baugruppe 14 nicht über einen Grandkörper 7 des Gehäuses 4 der Baugruppe 14 über. Eine Fluid-Durchgangsöffmmg 16 des Zuführleitungsabschnitts 15 mündet in ein Kanülen-Lumen 9 ein. Auch bei der Infusionskanülen-Baugruppe 14 hat die Leitungsachse 6 des Zuführleitungsabschnitts 15 einen Winkel von 90° zur Kanülen-Längsachse 3. Angedeutet ist in der Fig. 2 auch eine Me tallhülse 17, die vom Kunststoffmaterial der Infusionskanülen-Baugruppe 14 im Bereich der Kanüle 2 umspritzt ist. A further embodiment of an infusion cannula assembly 14 is described below with reference to FIG. Components and functions that correspond to those which have already been explained above with reference to FIG. 1, have the same reference numbers and are not discussed again in detail. In the case of the infusion cannula assembly 14, a feed section 15 does not protrude radially beyond a main body 7 of the housing 4 of the assembly 14. A fluid passage opening 16 of the supply line section 15 opens into a cannula lumen 9. Also in the case of the infusion cannula assembly 14, the line axis 6 of the feed line section 15 has an angle of 90 ° to the cannula longitudinal axis 3 2 is overmolded.
Dargestellt ist in der Fig. 2 zudem ein Septum 18 zum Verschluss eines in der Fig. 2 oberen Endabschnitts des Kanülen-Lumens 9. FIG. 2 also shows a septum 18 for closing an upper end section of the cannula lumen 9 in FIG. 2.
Die Infusionskanülen-Baugrappen 1 beziehungsweise 14 sind für eine Massenproduktion geeignet. Insbesondere lässt sich ein Herstellverfahren für diese Baugruppen 1 beziehungsweise 14 in einem Schritt ermöglichen.
The infusion cannula assemblies 1 and 14 are suitable for mass production. In particular, a manufacturing method for these assemblies 1 or 14 can be made possible in one step.
Claims
1. Infusionskanülen-Baugruppe (1; 14) aus Kunststoff, mit einer Kanüle (2) zur Einführung in ein Blutgefäß, - mit einem Gehäuse (4), an dem ein Zuführleitungsabschnitt (5; 15) ausgebildet ist, dessen Leitungsachse (6) unter einem Winkel zu einer Kanülen-Längsachse (3) verläuft, der größer ist als 10°, wo bei der Zuführleitungsabschnitt (5; 15) mit einem Lumen (9) der Kanüle (2) in Lluidverbindung steht, - wobei die Infusionskanülen-Baugruppe (1; 14) einstückig ausge führt ist. 1. Infusion cannula assembly (1; 14) made of plastic, with a cannula (2) for introduction into a blood vessel, - with a housing (4) on which a feed line section (5; 15) is formed, the line axis (6) of which runs at an angle to a cannula longitudinal axis (3) which is greater than 10 °, where the supply line section (5; 15) is in fluid connection with a lumen (9) of the cannula (2), the infusion cannula assembly (1; 14) is made in one piece.
2. Infusionskanülen-Baugruppe nach Anspruch 1, dadurch gekenn zeichnet, dass die Infusionskanülen-Baugruppe (1; 14) ein Spritz- gussteil darstellt. 2. Infusion cannula assembly according to claim 1, characterized in that the infusion cannula assembly (1; 14) is an injection molded part.
3. Infusionskanülen-Baugruppe nach Anspruch 1 oder 2, dadurch ge kennzeichnet, dass das Kanülen-Lumen (9) sich am Übergang in das Gehäuse (4) erweitert. 3. Infusion cannula assembly according to claim 1 or 2, characterized in that the cannula lumen (9) widens at the transition into the housing (4).
4. Infusionskanülen-Baugruppe nach Anspruch 3, gekennzeichnet durch einen konischen Erweiterungsabschnitt (10). 4. Infusion cannula assembly according to claim 3, characterized by a conical widening section (10).
5. Infusionskanülen-Baugruppe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Gehäuse (4) einen Aufnahmeab schnitt (12) für ein Septum (18) aufweist. 5. Infusion cannula assembly according to one of claims 1 to 4, characterized in that the housing (4) has a receiving section (12) for a septum (18).
6. Infusionskanülen-Baugruppe nach einem der Ansprüche 1 bis 5, ge kennzeichnet durch eine Metallhülse (17), die vom Kunststoffmateri-
al der Infusionskanülen-Baugruppe (14) in einem Kanülenbereich um spritzt ist.
6. Infusion cannula assembly according to one of claims 1 to 5, characterized by a metal sleeve (17) which is made of plastic material al the infusion cannula assembly (14) is injected in a cannula area around.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019216870.1A DE102019216870A1 (en) | 2019-10-31 | 2019-10-31 | Plastic infusion cannula assembly |
PCT/EP2020/078217 WO2021083630A1 (en) | 2019-10-31 | 2020-10-08 | Infusion cannula unit made of plastic |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4051338A1 true EP4051338A1 (en) | 2022-09-07 |
Family
ID=72840529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20789920.4A Pending EP4051338A1 (en) | 2019-10-31 | 2020-10-08 | Infusion cannula unit made of plastic |
Country Status (12)
Country | Link |
---|---|
US (1) | US20220370712A1 (en) |
EP (1) | EP4051338A1 (en) |
JP (1) | JP2023500451A (en) |
KR (1) | KR20220112247A (en) |
CN (1) | CN114929308A (en) |
AU (1) | AU2020374165A1 (en) |
BR (1) | BR112022008108A2 (en) |
CA (1) | CA3156107A1 (en) |
DE (1) | DE102019216870A1 (en) |
IL (1) | IL292523A (en) |
MX (1) | MX2022005077A (en) |
WO (1) | WO2021083630A1 (en) |
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US5545143A (en) * | 1993-01-21 | 1996-08-13 | T. S. I. Medical | Device for subcutaneous medication delivery |
KR100481420B1 (en) * | 2002-10-22 | 2005-04-08 | 주식회사 이래화학 | Blood vessel needle using biodegradable materials |
DE102004040358A1 (en) * | 2004-08-20 | 2006-03-02 | Pfaff Gmbh System Innovation Spritzgiesstechnik | Method for producing an indwelling catheter and indwelling catheter |
DE102007055646B4 (en) | 2007-11-21 | 2014-12-04 | B. Braun Melsungen Ag | Device for introducing a cannula into the epidural space |
US8353876B2 (en) * | 2008-01-30 | 2013-01-15 | Becton, Dickinson And Company | Occlusion resistant catheters |
WO2010071939A1 (en) * | 2008-12-24 | 2010-07-01 | Ssb Technology Pty Ltd | Moulding cannulae and small deep holes |
DK2528642T3 (en) * | 2010-01-25 | 2018-02-26 | Hoffmann La Roche | PROCEDURE FOR MANUFACTURING A COMPONENT WITH A CANON, CANON, COMPONENT WITH A CANON AND INSERT HEAD |
EP3109026B1 (en) * | 2015-06-23 | 2018-11-28 | Gerresheimer Regensburg GmbH | Device for the production of plastics objects with inserts |
-
2019
- 2019-10-31 DE DE102019216870.1A patent/DE102019216870A1/en active Pending
-
2020
- 2020-10-08 EP EP20789920.4A patent/EP4051338A1/en active Pending
- 2020-10-08 AU AU2020374165A patent/AU2020374165A1/en active Pending
- 2020-10-08 US US17/772,938 patent/US20220370712A1/en active Pending
- 2020-10-08 WO PCT/EP2020/078217 patent/WO2021083630A1/en active Application Filing
- 2020-10-08 JP JP2022524676A patent/JP2023500451A/en active Pending
- 2020-10-08 KR KR1020227018219A patent/KR20220112247A/en unknown
- 2020-10-08 CA CA3156107A patent/CA3156107A1/en active Pending
- 2020-10-08 CN CN202080077053.7A patent/CN114929308A/en active Pending
- 2020-10-08 BR BR112022008108A patent/BR112022008108A2/en unknown
- 2020-10-08 MX MX2022005077A patent/MX2022005077A/en unknown
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2022
- 2022-04-26 IL IL292523A patent/IL292523A/en unknown
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WO2021083630A1 (en) | 2021-05-06 |
KR20220112247A (en) | 2022-08-10 |
IL292523A (en) | 2022-06-01 |
MX2022005077A (en) | 2022-05-26 |
DE102019216870A1 (en) | 2021-05-06 |
BR112022008108A2 (en) | 2022-07-19 |
CN114929308A (en) | 2022-08-19 |
JP2023500451A (en) | 2023-01-06 |
CA3156107A1 (en) | 2021-05-06 |
US20220370712A1 (en) | 2022-11-24 |
AU2020374165A1 (en) | 2022-06-09 |
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